Piston Ring Set "HASTINGS" Ford/Chevrolet.
4" Pistons With 0,30.
Moly Top Compression Rings.
Chrome Oil Rings.
Ring 1: 5/64".
Ring 2: 5/64".
Ring 3: 3/16" (oljeskrapring).
Fits Piston Kit:
6108-H273CP-030.
If you want to know more about the advantages of piston rings of molybden instead of cast iron you can read more here.This part replaces part no 6148-E251K-030